Features&colon; 1&period; The power waste is low&comma; and environment friendly&period; 2&period; Working with wide-voltage&colon; Electronic ballast can be work normally and steadily when the voltage vary from 150V to 250V&period; 3&period; Adopt high quality semiconductor electronic component&comma; make highly use of light energy&comma; good wear&period; 4&period; Ballast works in condition of high frequency above 20kHz&comma; no noise&comma; it could protect our eyesight from frequency twinkling and soft ray&period; 5&period; Small cubage&comma; it can be installed in any lighting convenienlty which should be match with T8&sol;T4 lamp&period;